Turn-table for talking-machines.



No. 765,462. Y

PATENTED JULY 19, 1904. W. N. DENNISON.

TURN TABLE FORjTALKING MAGINBS.' urn-ouml Hmm AUG. 21. 1903.

No MODEL.

c ATTORNEY.

Noa 765,462.

UNITED STATES Patented July 19, 1904.

PATENT OEEIcE.

VVILBURN N. DENNISON, OE CAMQDEN, NEIY JERSEY, ASSIGNOR TO VICTOR TALKING MACHINE COMPANY, A CORPORATION OE NEW JERSEY.

TURN-TABLE FOR TALKING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 765,462, dated July 19, 1904.

Application filed August 2l, 1903, Serial No. 170,282. (No model.)

Be it known that I, WTLBURN N. DENNIsoN, a citizen of the United States, and a resident of Camden, State of New Jersey, have invented certain new and useful Improvements in Tu rn-Tables for Talking-Machines, of which the following is a full, clear, and complete disclosure.

The object of my invention is to provide a 1o connection between the turn-table used in the disk type of talking-machines and the driving-spindle therefor such that said spindle or shaft will not be bent or thrown out of alinement when the turn-table is subject to undue i 5 pressure or strains upon any portion thereof by reason of heavy articles being placed thereon or by reason of being pressed upon heavily by a persons hand while winding the motor. To attain this object, Iemploy a turn-table zo that tilts freely and independently of the bearing upon which it rotates, so that when it is pressed upon it will yield, but will upon the removal of the pressure resume its normal position. This construction is made desirable 2 5 because of the fact that many persons in winding a talking-machine motor, especially in the smaller sizes of machine, carelessly place one hand upon the turn-table with considerable-pressure in order to hold the casing in position while the motor is being wound by the other hand. Said construction is also desirable because of the fact that often in shipping machines from one place to another the turn-table spindle is liable to become bent by g5 careless or rough handling.

Fora full, clear, and eXact description of my invention reference may be had to the following specification and to the accompanying` drawings, forming a part thereof, in which- Figure l represents a plan view of the ballcarrier for the balls of the yieldable connection; Fig. 2, a transverse central sectional view of a turn-table and the upper part of the motor-casing, showing the parts in posi- 4 5 tion; and Fig. 3, an elevation, partly in section, showing the hub portion of the turn-table and its driving connection with the motor-spindle of shaft.

Referring to Fig. 2 of the drawings, the

numeral l indicates the top or cover of the 5o boX or casing containing the motor. 2 is a flanged plate which is slightly countersunl into theV inner surface of the casing l, so as to cover the circular opening 3 therein, and is attached to said casing in any suitable manner, such as by the screws 4L. To the under side of the plate 2 is attached the support 5 for the parts ofthe motor, the driving-spindle 6 of which projects through a central opening' 7 in said plate. The upper side of said plate 2 is 6o provided with a ring or Iiange 8, upon which the balls 9 are adapted to revolve aroundthe central spindle. The turn-table lO is also provided with a corresponding ring l l, which rests upon the top of said balls 9, and thereby supports the turn-table lO. The ball-carrier l2 comprises a ring 13, having a series of radial arms 14, which project therefrom in pairs, and having openings l5 registering with each other in the respective arms, so as to form sockets for the balls 9, `which project at opposite sides beyond the outer surface of said arms. The openings 15 in said arms are not all the same distances from the center of the ring 13 or its axis of rotation; but each is placed farther out on the arms, beginning with the innermost one, a slight distance in order that none of said balls will follow in the same track upon the rings 8 and 1l. In Fig. l the dotted lines represent the tracks of the inner- 8O most and outermost of the balls 9 and also the relation of the centers of said balls as they revolve about the axis of the spindle 6. The difference between the distances of any two consecutive balls between their centers and the axis of rotation of the spindle is about lifteen one-thousandths of an inch,which makes .the bearing-space for the nine balls shown slightly over one-eighth of an inch. The ballcarrier is preferablyformed of two similar plates of metal stamped out in the usual manner and fastened together by the rivets 16; but I do not wish to be limited to this method of forming the ball-carrier.

The lower side of the turn-table l O is provided 9 5 with a boss or hub 17, which projects slightly below the plane of the centers of the balls 9 and is provided with the vertical slots or recesses 18. rIhe opening 19 through this hub and the turn-table 10 is made tapering in two directions, as indicated in Fig. 2, and when said turn-table is in position fits loosely about the motor-spindle 6. Said spindle 6 is provided with a pin 20, which engages the slots 18 and provides means for giving the table a rotary motion as said spindle is rotated by the motor. The central opening 21 of the ballcarrier 12 fits loosely about the hub 17 and retains said ball-carrier in actual position, so that the balls will follow the requisite paths on the rings 8 and 11. It will now be seen that when one side of the turn-table 1() is forced downward the balls 9 adjacent thereto will form a fulcrum for said turn-table, whereby the opposite side thereof will be raised and the hub 17 will be moved longitudinally a slight distance on the spindle 6, thus preventing any undue strains coming upon said spindle. When said pressure is removed, the parts will immediately assume their normal positions, and the pins 2O will reenter the slots 18 if they have been removed therefrom by the tilting movement of the turn-table.

I do not wish to be limited to the exact form and proportion of parts shown in the drawings, for the same may be varied to accord with different choice of designs without departing from the spirit of my invention. In Fig. 2 for convenienceI have shown the diameters of the flanges 8 and 11 somewhat larger in proportion to the diameter of the turn-table than is adopted in practical use, the present portions being shown merely for clearness of description.

Having thus described my invention, what I claim, and desire to protect by Letters Patent of the United States, is-

l. In a sound recording or reproducing machine, a record-support, means for rotating the same, and a bearing independent of said means, said record-support being rotatably mounted upon, and tiltable away from and toward said bearing, and independently thereof.

2. In asound recording' or reproducing machine, a record-support, a driving-spindle therefor, and a bearing independent of said spindle, said record-supportl being rotatably mounted upon, and tiltable away from and toward said bearing, and independently thereof.

3. In a sound recording or reproducing machine, a part thereof forming a support for antifriction devices, antifriction mounted upon said support,'and a record-support mounted upon said antifriction devices, said record-support being tiltable away from and toward said support, and independently thereof.

1. In a sound recording or reproducing machine, antifriction devices, and a record-support mounted'thereon, said record-support being tiltable away from and toward said antifriction devices, and independently thereof.

devices 5. In a sound recording or reproducing machine, antifriction devices, and a record-support rotatable thereon, said record-support being freely movable away from and toward said antifriction devices, and independently thereof.

6. In a sound recording or reproducing machine, antifriction devices, and a record-support rotatably mounted thereon, said recordsupport being tiltable'away from and toward said antifriction devices, and independently thereof.

7. In a sound recording or reproducing Inachine, antifriction devices, the members of which are secured in fixed relation, and a record-support rotatably mounted thereon, said record-support being tiltable away from and toward said antifriction devices, and independently thereof.

8. Ina sound recording or reproducing machine, antifriction devices, a support therefor, and a tiltable record-support mounted upon said antifriction devices, and means independent of said support and record-support for holding the members of said antifriction devices in position and relatively fixed.

9. In a sound recording or reproducing machine, a driving-spindle, a record-support loosely connected therewith, and antifriction devices upon which said record-support is rotatably mounted, said record-support being tiltable away from and toward said antifriction devices, and independently thereof.

10. In a sound recording or reproducing machine, antifriction devices, a carrier therefor, and a tiltable record-support mounted upon said antifriction devices, and engaging said carrier, and serving as the sole means for restraining lateral movement thereof.

11. In a sound recording or reproducing machine, antifriction devices, a carrier therefor, a tiltable record-support mounted upon said antifriction devices,and aprojection upon said recordsupport engaging said carrier, and serving as the sole means for restraining lateral movement thereof.

12. In a sound recording or reproducing machine, antifriction devices, a carrier therefor, a tiltable record-support mounted upon said antifriction devices, and a downwardly-extending central projection upon said recordsupport, engaging said carrier, and serving as the sole means for restraining lateral movement thereof.

13. In a sound recording or reproducing machine, antifriction devices, a carrier therefor having a central opening, a-tiltable record-support mounted upon said antifriction devices, and a central downwardly-projecting boss upon said record support situated within said opening in the carrier, and serving as the sole means for restraining lateral movement thereof.

1-1. In a sound recording or reproducing machine, antifriction devices, a record-support IIO IZO

16. In a sound recording or reproducing machine, a drivingspindle, a record-support loosely connected therewith, and having a downwardly extending central projection, said spindle passing loosely through an opening in said support and projection to permit the support to tilt, a carrier having an opening receiving said projection, and antifriction devices carried by said carrier, and upon which said support is relatively tiltable.

17. In a sound recording or reproducing machine, a casing having a circular track, a carrier having antifriction devices resting upon said track, and a record-support having a circular track engaging said antifriction devices, said record-support being tiltable upon and relative to said antifriction devices.

18. In a sound recording or reproducing machine, a casing having a circular track, a carrier having arms carrying antifriction devices resting upon said track, said antifriction devices projecting above and below said arms, and a record-support resting upon said antifriction devices and tiltable relative thereto.

19. In a sound recording and reproducing machine, a record-support, means for rotating the same, and a bearing independent of said means and forming the sole support for said record-support, and said record-support being tiltable away from and toward said bearing, and independently thereof.

20. In a sound recording and reproducing machine, a part thereof forming the sole means for supporting a record-support, the recordsupport rotatably mounted thereon, and a driving-spindle independent of said means and loosely engaging said record-support.

21. In a sound recording or reproducing machine, a casing having a circular track, antifriction devices resting upon said track, a record-support rotatably mounted and relatively tiltable upon said antifriction devices, and means for holding said antifriction devices at different radii from the axis of rotation of said record-support.

22. In a sound recording or reproducing machine, a driving-spindle, a turn-table loosely mounted thereon so as to revolve therewith, a motor-casing, a part carried by said casing and having a circular track thereon, a corresponding circular track formed on said turn-table and antifriction devices located between said tracks, said turn -table being tiltable independently of said part having the circular track supporting the antifriction devices.

28. In a sound recording or reproducing' machine, a driving-spindle, a turn-table loosely mounted thereon so as to revolve therewith, a motor-casing, a part carried by said casing having a circular ball-track thereon, a corresponding circular ball-track formed on said turn-table and antifriction-balls located between said tracks, said turn-table being tiltable independently of said part having the circular ball-track supporting said balls.

24. In a sound recording or reproducing machine, a turn-table, a spindle on which said.

turn-table is mounted so as to revolve therewith, a motor-casing, a part carried by said casing forming a flat circular ball-track, a corresponding flat circular ball-track formed on said turn-table, antii'riction-balls between said tracks'and means independent oi' said turntable for holding said balls in lposition between said tracks. l

25. In a sound recording or reproducing machine, a driving-spindle, a turn-table or record-support loosely mounted thereon so as to revolve therewith and having a flat circular ball-track on its under side, a motor-casing, a part carried by said casing forminga flat circ'ular ball-track, antitriction-balls located between said tracks and means for holding said balls between said tracks at different radii from the axis of rotation of the spindlel 26. In a sound recording or reproducing rnachine, a driving-spindle, a turn-table loosely mounted thereon so as to revolve therewith and having a iiat circular ball-track on its under side, a motor-casing, a part carried by said casing forming a similar flat circular balltrack, antifriction-balls located between said tracks and a ball-carrier held loosely in position by said turn-table and having sockets for holding said balls between saidI tracks at dii'- ferent radii from the axis of rotation of thc spindle.

27. In a sound recording or reproducing machine, a driving-spindle, a turn-table loosely mounted thereon so as to revolve therewith and having a Hat circular ball-track on its under side and also provided with a central hub or boss, a motor-casing, apart carried by said casing having a second flat circular ball-track, antifriction-balls located between said tracks and a ball-carrier held loosely in position by said hub or boss.

28. In a sound recording or reproducing machine, a driving-spindle, a turn-table loosely mounted thereon so as to revolve therewith and having a flat circular ball-track on its under side and also provided with a central hub' or boss, a motor-casing, a part carried by said casing having a second iiat circular ball-track, antifriction-balls located between said tracks, and a ball-carrier having ball-sockets at different radii from the axis of rotation and held loosely in position by said hub or boss.

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29. In a sound recording or reproducing niachine, a driving-spindle, a turn-table loosely rnounted thereon so as to revolve therewith having a fiat circular ball-track on its under side and also provided with a central hub or boss, a motor-casing, a part carried by said casing having a second flat circular ball-track, antiiriction-balls located between said tracks, annular ball-carrier held loosely in position by said hub or boss and having arms provided with ball-sockets of diierent radii from the aXis of rotation.

30. In a so und recording or reproducing Inachine, a turn-table having a ball-track on its under side and also provided with a central hub or boss, a double inwardly-tapering' opening being provided in said turn-table and boss, said boss having slots in its lower end, a drivingspindle having transverse projections adapted to engage said slots, a motor-casing, a part carried by said casing having a second balltrack, antii'riction-balls located between said tracks and means for holding said balls in position.

3l. In a sound recording or reproducing Inachine, a driving-spindle having transverse projections thereon, 'a turn-table having a flat circular ball-track on its under side and also provided with a central hub or boss having an opening therethrough through which said driving-spindle is adapted to pass loosely and also having slots in its lower end adapted to engage said transverse projectionsa part carried by said casingV having a second iiat circular ball-track, antifriction-loalls located between said tracks, and a ball-carrier surrounding said hub or boss and held loosely in position thereby.

In witness whereof I have hereunto set my hand this 20th day of August, A. D. 1903.

WILBURN N. DENNISON.

Witnesses: i

JOHN B. RUTHERFORD, EDW. W. VAILL, Jr. 

